In the Linux kernel, the following vulnerability has been resolved: i40e: Fix potential invalid access when MAC list is empty list_first_entry() never returns NULL - if the list is empty, it still returns a pointer to an invalid object, leading to potential invalid memory access when dereferenced. Fix this by using list_first_entry_or_null instead of list_first_entry.
Fix
Patch, vendor advisory and mitigation references on NVD 8
- https://git.kernel.org/stable/c/1eadabcf5623f1237a539b16586b4ed8ac8dffcd Patch
- https://git.kernel.org/stable/c/3c6fb929afa313d9d11f780451d113f73922fe5d Patch
- https://git.kernel.org/stable/c/66e7cdbda74ee823ec2bf7b830ebd235c54f5ddf Patch
- https://git.kernel.org/stable/c/971feafe157afac443027acdc235badc6838560b Patch
- https://git.kernel.org/stable/c/9c21fc4cebd44dd21016c61261a683af390343f8 Patch
- https://git.kernel.org/stable/c/a556f06338e1d5a85af0e32ecb46e365547f92b9 Patch
- https://git.kernel.org/stable/c/e2a5e74879f9b494bbd66fa93f355feacde450c7 Patch
- https://git.kernel.org/stable/c/fb216d980fae6561c7c70af8ef826faf059c6515 Patch
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 7.1 · linux, debianNVD modified 2026-10-19 21:10
Affected (CPE criteria) 6
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.17:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.17:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.17:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.17:rc4:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
References 12
- https://git.kernel.org/stable/c/1eadabcf5623f1237a539b16586b4ed8ac8dffcd Patch
- https://git.kernel.org/stable/c/3c6fb929afa313d9d11f780451d113f73922fe5d Patch
- https://git.kernel.org/stable/c/66e7cdbda74ee823ec2bf7b830ebd235c54f5ddf Patch
- https://git.kernel.org/stable/c/971feafe157afac443027acdc235badc6838560b Patch
- https://git.kernel.org/stable/c/9c21fc4cebd44dd21016c61261a683af390343f8 Patch
- https://git.kernel.org/stable/c/a556f06338e1d5a85af0e32ecb46e365547f92b9 Patch
- https://git.kernel.org/stable/c/e2a5e74879f9b494bbd66fa93f355feacde450c7 Patch
- https://git.kernel.org/stable/c/fb216d980fae6561c7c70af8ef826faf059c6515 Patch
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html Mailing List, Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html
- https://cert-portal.siemens.com/productcert/html/ssa-089022.html